baber/WOPTO huggingface dataset:
Patent GB-512844-A (GB)
Title: Manufacture of azo-dyestuffs insoluble in water
IPC: C09B29/20
Filed: 1938-03-18
Abstract: 512,844. Dyes. GROVES, W. W. (I.G. Farbenindustrie Akt.-Ges.). March 18, 1938, No. 8390. [Classes 2 (iii) and 15 (ii)] Black azo-dyes are obtained by coupling a diazo-compound from 4-amino-2-benzoyl-diphenylamine or a substitution product thereof in substance, on the fibre, or on a substratum adapted for the production of lakes with a 2.3-hydroxynaphthoic acid arylide, only such components being used as do not contain any group rendering the dyestuff soluble in water. In examples : (1) bleached cotton fabric is padded with a solution of 1-(2<1>.3.<1>-hydroxynaphthoylamino)-2-methylbenzene, and then printed with a paste containing the diazonium zinc chloride compound of 4-amino-2-benzoyldiphenylamine ; viscose artificial silk or mixed fabrics from cotton and viscose artificial silk are obtained similarly ; (2) cotton is padded with a solution of 1-(2<1>.3<1>-hydroxynaphthoylamino)-4- chlorbenzene, and printed with a paste containing the diazonium zinc chloride compound of 4-amino-4<1>-methoxy-2-(4<11>-methoxybenzoyl)-diphenylamine ; (3) a diazo-solution prepared from 4-amino-2-(4<11>-methylbenzoyl)-diphenylamine is coupled with 1-(2<1>.3<1>-hydroxynaphthoylamino)-2.4-dimethoxy-5-chlorbenzene ; the diazo-solution may be mixed with a substratum such as barytes or zinc white, and then mixed with the arylide solution. A table specifies as diazo components the following :-4-amino-2- (4<11>-dimethylaminobenzoyl)-diphenylamine, 4- amino - 4<1> - methoxy -2- (4<11>-methylbenzoyl)-diphenylamine, 4-amino-4<1>-benzyloxy-2-benzoyldiphenylamine, 4-amino-2<1>-ethoxy-2-benzoyldiphenylamine, 4-amino-41-chloro-2-benzoyldiphenylamine, 4-amino-2<1>-methoxy-5<1>-methyl- 2-benzoyl-diphenylamine, 4-amino-6-methyl-2- benzoyl-diphenylamine, 4-amino-41-methoxy (or ethoxy)-2-benzoyl-diphenylamine, 4-amino-2- (4<11>-methoxy-or ethoxy-benzoyl)-diphenylamine, 4-amino-4<1>-methoxy-2-(4<11>-ethoxy-benzoyl) diphenylamine, 4-amino-2<1>.4<1>-dimethoxy- 2-benzoyl-diphenylamine, 4-amino-31-methyl- 2-benzoyl-diphenylamine, 4-amino-2-(4<11>-diethylaminobenzoyl)-diphenylamine, and coupling components are the 2<1>.3<1>-hydroxynaphthoyl-derivatives of:-o-toluidene, 1-amino-2- or' 4-methoxybenzene, 1- or 2-aminonaphthalene, 1-amino-2-methyl-4-chlorbenzene, m-nitraniline, 1-amino-4-chlorbenzene, aniline, 1-amino-4- methoxy-2-methylbenzene, 1-amino-2-ethoxybenzene. Specification 329,960, [Class 2 (iii)], is referred to. 4- Amino-2-benzoyldiphenylamines are prepared by condensing 1-benzoyl-2-chloro-5- nitrobenzene or a substitution product thereof with aniline or a substitution product and reducing the 4-nitro-2-benzoyldiphenylamine so obtained.
Patent GB-1504672-A (GB)
Title: Power plant employing a stand-by engine
IPC: F02C6/00
Filed: 1976-03-03
Abstract: 1504672 Power plant B N TAKAMINE 3 March 1976 08441/76 Heading F1Q A power plant employing a stand-by engine 5 to meet a demand for power during a failure in the normal electrical power supply to a load and including an engine starting and control means to start the engine upon failure of the normal power supply, run the stand-by engine 5 during the power failure and stop the stand-by engine when the normal power supply is restored comprises a) a compressed air supply 9, b) a compressed air starter motor 8 operatively connected to the stand-by engine 5 to drive the engine for starting c) a starter valve means 10 operatively connecting the compressed air supply 9 with the compressed air starter motor 8 so that when the valve means is open air can flow from the air supply to the starter motor, d) a power failure detector 7 operatively connected to the normal electrical power supply 3, e) means connecting the power failure detector 7 to the starter valve means 10 for opening the starter valve means upon failure of the normal power supply, f) an engine running detector 12 operatively connected to the stand-by engine for determining whether the engine is running g) means 24 connecting the engine running detector to the starter valve means 10 for closing the valve when the engine is running h) a two position engine operation switch 13 operatively connected to the stand-by engine having an on position for allowing the engine to run and an off position for preventing the engine from running and i) means 14 operatively connecting the power failure detector 7 to the engine operation switch so that the switch will be "on" during power failure and "off" when normal power is available so that the engine may be started and run when power fails and will be shut off when normal power returns. The stand-by engine may be a gas turbine or have cylinders.
Patent GB-693145-A (GB)
Title: Improvements in radio navigation apparatus
IPC: G01S5/00
Filed: 1951-04-11
Abstract: 693,145. Radio-navigation. RADIO CORPORATION OF AMERICA. April 11, 1951 [April 20, 1950], No. 8445/51. Drawings to Specification. Class 40 (vii). A radio-navigation system for defining a hyperbolic course line and comprising means for transmitting frequency-modulated radio waves by two different transmission paths to a receiver in an aircraft to produce therein a heterodyne beat-note, the frequency of which is indicative of the hyperbolic path being followed, is associated with a system of the type described in Specification 649,322 wherein a picture of a P.P.I. radar display is transmitted by standard television technique to a receiver in the aircraft, the beat note being applied to the television receiver to produce a pattern on the screen thereof, and the beat-note frequencies being so chosen that the pattern is stationary when the aircraft is flying along a desired path. In order to define a course in the horizontal plane, a frequency-modulated signal is radiated from two aerials spaced on each side of the course, the signal radiated from one aerial being delayed a predetermined amount with respect to the other. The beat note corresponding to the desired course is arranged to be a harmonic of the television line scan frequency whereby stationary vertical bars are produced on the display in the aircraft when the desired course is being followed. In defining a glide path a single elevated transmitting aerial is employed, the signals arriving at the aircraft directly and by ground reflection being heterodyned to produce a beat note, the frequency of which, when the glide-path is being followed, is arranged to be a harmonic of the frame-scan frequency, so that stationary horizontal bars are produced on the television screen.
Patent GB-583051-A (GB)
Title: Improvements in or relating to articulated couplings
IPC: F16D3/50
Filed: 1944-05-04
Abstract: 583,051. Universal couplings. TRIGGS, W. W. (Schweizerische Lokomotiv-und Maschinenfabrik). May 4, 1944, No. 8448. [Class 80 (ii)] A universal coupling particularly for the individually driven axles of rail vehicles comprises one or more torsion bars 4 rotatably mounted on the wheel 2 and having crank arms 6 symmetrically disposed with respect to the axle 1 and engaging in guides 12 in the driving wheel 13 The ends of the bars 4 are supported in bearing bushings 15 and the arms 6 carry pivotally mounted slippers 11 the arrangement being that the distance between the centres of the bearings 15 is equal to the distance between the centres of the slippers 11 so that any bending stress on the bars 4 is avoided. To prevent complete breakdown of the coupling should the torsion bars break a sleeve 9 is provided around each bar with a loose claw connection 8 with the hub 7 of each arm 6 so that in the event of the bar breaking the sleeve 9 will transmit the drive. In a modification the ends of the arms 6 are pivotally connected to the driving wheel and the bearing bushings of the bars 4 are allowed a certain amount of sliding movement in guides on the wheel 2.
Patent GB-268392-A (GB)
Title: Improvements relating to speed and distance indicators
IPC: G04B47/06
Filed: 1927-03-28
Abstract: 268,392. Mombur, G. March 27. 1926, [Convention date]. Counters actuated by electric and magnetic means; transfer mechanism.-In a speedometer having mileage counters a measuring or balance wheel, the movement of which is restrained by a spring, has imparted to it a succession of slight, equal angular displacements, separated by intervals of time which are a function of the speed to be measured. Fig. 1 shows an arrangement in which the displacements a.re imparted to the wheel 1 by magnetic means comprising an electromagnet 20 the winding of which is energized intermittently by a contact maker 29 on the speed shaft. The magnetic circuit passes through a spring-pulled member 21 which is pivoted on a shaft 22 and carries. on an eccentric pivot 26, a shoe 25 which is adapted to engage and displace the wheel 1 when the electromagnet is energized. Adjustable stops 24, 27 are provided, and the magnetic binding between the parts 21. 25 is relied upon to secure the desired action. A second winding 30 may be arranged to demagnetize the magnet 20 when the current is ruptured. Fig. 7 shows an arrangement in which an electromagnet 33, which is energized intermittently by an interrupter 29 on the speed shaft, actuates an armature 41 pivoted at 42. A dependent link 46 has a beak 48 adapted to ride over successive teeth on a ratchet wheel 49. As the link moves in passing a tooth, it engages the balance wheel 1 and imparts an impulse to it. An extension 45 acts upon the wheel as a brake. Total mileage and' trip mileage counters may be actuated from a suitable part of the mechanism such as the ratchet wheel 49, Fig. 7, or by a shoe similar to the shoe 25, Fig. 1, engaging a pawl controlled wheel. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. The movement of the mileage registering mechanism may be communicated to a shaft 51, Fig. 11 (Cancelled) having a crank 53 carrying two pawls 54, 58, the former of which actuates a ratchet 55 of a total mileage counter 57, and the latter of which actuates a trip dial indicator and pointer. The pawl 58 has two noses, one of which engages a wheel 61 and advances a units and tens pointer over a dial. Onceeach revolution this nose engages a deep notch 61<1> and allows the second nose to engage another wheel and advance a " hundreds disc behind an opening in the dial of the instrument. Means are provided for zeroizing the trip register, and for varying the gear ratio of the driving mechanism- This subject-matter does not appear in the Specification as accepted.
Patent GB-564346-A (GB)
Title: Improvements in or relating to the preparation of catalysts
IPC: B01J27/06
Filed: 1941-07-07
Abstract: Supported aluminium chloride catalysts are prepared by passing aluminium chloride vapour over an adsorptive carrier, such as clay or alumina, under such conditions that a thin layer is adsorbed. The carrier may be passed down a column up which the chloride vapour ascends while a temperature of 190-300 DEG  C. is maintained. The application of the catalyst to the isomerization of butane is described.
Patent GB-139912-A (GB)
Title: An improved clip for papers, documents, and the like
IPC: B42F9/00
Filed: 1919-04-05
Abstract: 139,912. Nicholas, E. H. April 5, 1910. No Patent granted (Scaling fee not paid). Clips.-A securing-device for papers comprises an outer part, as shown, having a straight slot a, Fig. 1, and a part, as shown in Fig. 2, fitting within the other and having an inclined slot d. A pin g, Fig. 4, passing through both slots serves to project the inner part of the clip and grip the papers between the edges h, c. Upturned ends f<1>, f<2> formed on the inner part act as guides.
Patent GB-609684-A (GB)
Title: Abrasive articles and method of manufacture
IPC: B24D18/00
Filed: 1946-03-20
Abstract: 609,684. Abrasive articles. CARBORUNDUM CO. March 20, 1946, No. 8680. Convention date, April 6, 1945. [Class 60] A bonded abrasive article has embedded therein, to be substantially flush with a mounting face thereof, a plurality of anchoring means, each comprising a metallic insert and spacing material which is disposed between the metallic insert and said mounting face and which is substantially as easily abradable as the surrounding bonded abrasive. In a method of making a bonded abrasive article, having a flat mounting face an abrasive body is moulded to a desired shape and a plurality of anchoring means are embedded in said body to be substantially flush with the potential mounting face thereof, the moulded body is heated to mature the bond and the mounting face of the resulting article dressed to render said face, including the anchoring means, substantially flat. A bonded abrasive wheel 4 has moulded into the rear, or mounting face 6 thereof metal inserts 11 adapted to be engaged by bolts 13 to anchor the abrasive wheel to a backing plate 7. Washers 12 of softer material than the metal inserts and as abradable as the surrounding abrasive body are placed between the metal insert and the mounting face 6 of the wheel. Instead of moulding the washers and inserts simultaneously with moulding the abrasive body, the body may be moulded with suitable cavities and inserts grouted in afterwards, in which case the preformed composition washers 12 may be replaced by a resinous cement composition filling. In either case after firing or curing the abrasive body the rear surface 6 with the washers 12 is lapped flat to remove warpage and bolted to the backing plate 7. The bolts 13 may extend from the front grinding surface of the wheel, pass through unthreaded inserts in the rear surface, and thread into the backing plate.
Patent GB-687137-A (GB)
Title: Improvements in or relating to means for forming films from liquids
Inventor: CUTTELL JOHN REGINALD
IPC: C12M3/04
Filed: 1949-03-31
Abstract: 687,137. Centrifugal machines. ASTELL LABORATORY SERVICE CO., Ltd. March 31, 1950 [March 31, 1949], No. 8754/49. - Class 23 Apparatus for forming films of bacteriological medium within glass bottles having a neck at one end and a central depression at the other end comprises pairs of aligned centres 15, 22 for engaging the bottles and means, such as a belt 28, for driving one of each of the pairs of centres, towards which the corresponding centres are spring-urged. The apparatus has a casing 7, 8 and a top wall 11 which is recessed at 12 and has centre-supporting blocks 13, 14 welded or riveted thereto. Each centre 22 has a flange 24 to engage the bottle and is driven by a pulley 27 which may be formed with holes and fan blades to direct cooling are against the bottle. The centre 15 is made of lignum vitae and the casing has a removable inspection plate 33. It is stated in the Provisional Specification that one end of each bottle may be held in a chuck. Specifications 645,733 and 687,187, [both in GroupXVII], are referred to.
Patent GB-803131-A (GB)
Title: Improvements in or relating to textile machines employing warp beams
Inventor: HASLAM-JONES FRANK HORSFIELD
IPC: D04C5/00
Filed: 1954-03-25
Abstract: 803,131. Lace machines. JARDINE, Ltd., J. March 31, 1955 [March 25, 1954], No. 8763/54. Class 74(1). A frame for supporting a plurality of warp beams in a textile machine, such as a Levers lace machine, has means, such as wheels 6, engaging guides such as rails 27, so that it may be withdrawn to a location clear of the machine when warp beams are to be removed therefrom and mounted therein, and then returned to its normal operative position within the machine, wherein it may be located by stops 24 and a clamp. Subsidiary warp beams are mounted in U-shaped cut-outs 5 in frame members 4, and main warp beams 17 in ball or roller bearings 23 carried in brackets 10 bolted to these frame members. Solid stub shafts 18 in the beams are inserted into hollow stub shafts 20 carried by the ball bearings, or the reverse. The shafts 20 are cut away at 14 to receive the shafts 18, which are held therein by sleeves 21 slid over their ends and secured by set screws 22. Each beam 17 is controlled by a brake at one end, comprising a brake drum 25 on to which shoes 13 are pressed by a spring 28 the pressure of which is adjustable by a sleeve nut 16 rotatable through a knob 11.
Patent GB-452761-A (GB)
Title: Improvements in or relating to electron valves
IPC: H01J25/52
Filed: 1935-02-28
Abstract: 452,761. Thermionic valves. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN-EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. Feb. 28, 1935, No. 8822 /36. Convention date, March 1, 1934. Divided out of 452,490. [Class 39 (i)] A valve for ultra-short wave use comprises an open hollow space resonator which is surrounded by a hollow conducting member which prevents radiation leakage. In one form, a split-anode magnetron has anodes 2, 21 connected to rods 4, 4<1> which form a channel of low characteristic impedance to an aerial 5 and the system is totally enclosed by a member 3. Short-circuiting condenser plates 6, 7, 8 are provided. The inner surface of the member 3 may be gold- or silver-plated and may be polished. Specification 429,863 is referred to.
Patent GB-538256-A (GB)
Title: Improvements in adjustable angle blocks
IPC: G01C1/00
Filed: 1940-05-17
Abstract: 538,256. Angle gauges. KNOYLE, C. H. May 17, 1940, No. 8863. [Class 97 (iii)] An adjustable angle block whereby small angles can be established with great precision consists of two or more circular wedge-shaped solid or ring like discs concentrically mounted in pairs of equal wedge angles with inclined faces in contact. As shown a pair of wedge discs A, B, are mounted with their inclined faces in contact and are rotatable with respect to each other by means of recesses and centralizing rings E ... G. The edges of the discs A, B are marked as shown at H, J with divisions representing equal increments of included angle between their outer surfaces. Preferably two square reference blocks C, D are included bearing reference marks K, L to indicate adjustment of the discs A, B for which tommy holes M are provided. Two or more pairs of discs A, B may be included one pair, say, being graduated in minutes of arc and the other in seconds.
Patent GB-708776-A (GB)
Title: Improvements in or relating to furniture
Inventor: TURNELL THOMAS JAMES
IPC: A47C4/03
Filed: 1952-04-08
Abstract: 708,776. Furniture frames; seats. RUSSELL & CO. (FURNITURE), Ltd. July 31, 1952 [April 8, 1952], No. 8947/52. Class 52(2) An article of furniture such as a chair comprises front and back or the side portions constructed as permanent structures each having two or more legs or uprights, the structures being bridged by removable rails arranged to maintain a set angular relation between the structures and the rails. As shown the front permanent structure comprises the legs 1 connected by cross-rail 2 by means of tenon and socket joints 3, the front legs 1 having secured thereto gussets 18. The rear permanent structure similarly comprises legs 4 and cross-rail 5, the gussets 18 being omitted. The removable side rails 8 are connected by means of threaded studs 9 passing through co-operating apertures in the legs and removable rail and engaging a tapped plate 11 which is secured in the tenon of the tenon and socket joint 3. In addition removable inclined rails 24 engage recesses 25 in the rear and front legs. In place of the studs 9 connecting rods having their ends threaded in opposite hand may be screwed into tapped sockets in the front and rear rails.
Patent GB-551174-A (GB)
Title: Improvements in the production of joints between steel and silver
IPC: C23C28/02
Filed: 1942-06-30
Abstract: 551,174. Making compound sheets &c. JOHNSON MATTHEY & CO., Ltd., and CHASTON, J. C. June 30, 1942, No. 8978. [Classes 83 (ii) and 83 (iv)] Soldering.-Silver is united to steel by first coating the steel with copper and then contacting the silver with the copper coating and heating the parts to a temperature above 780‹ C. in a non-oxidizing atmosphere. The steel may be coated with copper by electrodeposition or by melting a thin layer thereover in a reducing atmosphere and the silver may be applied to the copper coating by electrodeposition or by placing a silver sheet or a shaped silver article in close contact therewith. The atmosphere may be inert or reducing and the temperature is preferably about 800‹ C.
Patent GB-545696-A (GB)
Title: Improvements in accelerators of vulcanization
IPC: C07D277/80
Filed: 1940-05-21
Abstract: 545,696. Rubber accelerators. UNITED STATES RUBBER CO. May 21, 1940, No. 8998. Convention date, June 24, 1939. [Class 2 (iii)] [Also in Group V] Rubber is vulcanized in the presence of accelerators having the formula x n Y in which x is an arylenethiazyl radical, Y is NH-alkyl, NH-aryl, when n is 1, and NH, N-alkyl or N-alicyclic when n is 2, and Y is N when n is 3. The products are obtained by the reaction of arylenethiazyl sulphur chloride with ammonia or primary amines. Examples give the preparation of compounds X 2 NH, X 3 N, X  2 NC  2 N5. X 2 NC 6 H 11 , and X 2 NC 4 H 9 , where X is a benzothiazyl radical. Compounds may also be prepared from α- and #-naphthylamine. The Specification, as open to inspection under Sect. 91, states that when n is 1, Y may be N-diaryl, O-alkyl or O-aryl, or when n is 2, Y may be O. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 303,827, [Class 2 (iii)], and 517,451.
Patent GB-825966-A (GB)
Title: Improvements in or relating to devices for closing ship's holds, railway open-trucks and like openings
IPC: B63B19/18
Filed: 1957-03-19
Abstract: 825,966. Covers for vehicles. INTERNATIONAL MACGREGOR ORGANIZATION, I.M.G.O. March 19, 1957 [April 13, 1956], No. 9009/57. Class 103(4) [Also in Group XXXIII] A cover for a hatch of a railway vehicle comprises a series of panels, e.g. 11-16, which may be corrugated, interconnected, e.g. by chains and provided with supporting rollers 37, the panel 16 having additional supporting rollers 36, and tipping rollers 38, to enable the panels to be stowed vertically at the end of the hatch. The hatch is closed by exerting a pull on the chain 41 attached to the end panel 16 which moves from the stowage place 5, the tipping roller 38 moving along and down the ramp 8, 9, while stowing rollers 60 which may be provided on the shafts of the supporting rollers 37 are constrained to move up the ramps 4, 10. The movement continues until the panel takes up a horizontal position, the supporting rollers 37 engaging a runway 3. Continuing the pull the remaining panels are moved in a similar manner until their leading edges engage with the adjacent panels as shown in Fig. 11 and supported at their rear ends by rollers 37. Thrust rollers 30 are mounted as shown except on panel 11, and longitudinal runways provided on the panels terminating in a ramp 32. Sealing strips, e.g. 26 may be arranged at the ends of the hatch opening and locking bars 55 may be supplied to engage notch members 57 on the panel. The actuation mechanism may comprise an endless chain 41 secured to the end panel 16 passing around sprockets 42 at each end of the hatchway with a suitable arrangement for hand operation. A section iron may be provided at the upper edge of the hatch to laterally protect the rollers and chain. Specifications 649,384 and 695,657 [both in Group XXXIII] are referred to.
Patent GB-375357-A (GB)
Title: Improvements in and relating to the control of radio apparatus
IPC: H03G3/16
Filed: 1931-03-24
Abstract: 375,357. Wireless receiving apparatus. MURPHY, F. and POWER, E. J., 31, Broadwater Road, Welwyn Garden City, Hertfordshire. March 24, 1931, No. 9013. [Classes 40 (iii) and 40 (v).] In a wireless receiver volume is controlled without disturbing tuning by a resistance in parallel with an impedance common to two or more circuits of the frequency selecting filter. The Figure shows input circuits coupled by an inductance 3 shunted by resistance 6. When a plurality of filters are used a plurality of ganged adjustable resistances may be used. Reaction may be controlled by an additional resistance 11 ganged to the resistance 6. The variable resistance may comprise a variable portion of a resistance connected in shunt to a second resistance or a tapped portion of a second resistance.